Variable camshaft assembly

Details Variable camshaft assembly Variable camshaft assembly

1980-09-22

1983-06-21

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 906, F01L 134

Patent

active

043888976

ABSTRACT:
A variable camshaft assembly which serves to vary the timing of poppet valves in an internal combustion engine. An axially movable wormed camshaft controls a number of splitable cams of conventional cross section operating individual valves. When the camshaft is shifted axially, each valve operating cam splits into two operating elements. When the raised noses of the splitable cam elements are in alignment, the valve event is minimal. When the raised noses are in misalignment, the valve event is extended.

REFERENCES:
patent: 1061098 (1913-05-01), McKeen, Jr.
patent: 2191459 (1940-02-01), Duncan
patent: 2804061 (1957-08-01), Gamble
patent: 2851023 (1958-09-01), Durkan
patent: 2888837 (1959-06-01), Hellmann
patent: 2980089 (1961-04-01), Sampietro
patent: 3261338 (1966-07-01), Arutunoff et al.
patent: 3413965 (1968-12-01), Gavasso
patent: 3481314 (1969-12-01), LeCrenn
patent: 3618574 (1971-11-01), Miller
patent: 3641988 (1972-02-01), Torazza et al.

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